Opal is a Diplocaulus with an extrodinary knowledge of medicines and wellness. When she was younger, Opal always found herself ill from one sniffle or another and decided to take it upon herself to understand what a Paleofolk needs to be happy and healthy. Her effervescence makes for an warm and approachable bedside manner, but when she finds herself infodumping the morbid side of her work onto her patients, she sometimes makes them sicker than when they walked in. Opal's curiosity for health extends outside of the realm of Paleofolk and includes a totally normal and NOT an obsessive interest in bugs and aliens.